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Step 1
Decide what expression you want the mouth to have. If your character is happy, for instance, you'll want to draw a big smile. Anger can be represented by a short line turned down on one side or, sometimes, even fangs.
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Step 2
Add elements of your cartoon character's personality to the mouth. A sophisticated cartoon woman might get big lips, while a kid may get none. Things like lipstick, piercings and teeth are important details.
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Step 3
Draw the cartoon character's mouth out with a pencil first. This allows you to try out multiple mouths and expressions.
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Step 4
Size your cartoon mouth correctly. A proportionate mouth should extend from the center of one eye's pupil to the other, but over or under-sizing a cartoon character's mouth is a great way to show expression.
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Step 5
Emphasize the mouth with a shadow on the chin or dimples. Drawing in details like this makes a cartoon mouth look more realistic.








